Added removeAll to TweenManager's stub so call from stageManager doesn't throw errors

Author: EvidentlyCube

src/stubs/TweenManager.js

@@ -12,5 +12,6 @@
 Phaser.TweenManager = function () {};
 
 Phaser.TweenManager.prototype.update = function () {};
+Phaser.TweenManager.prototype.removeAll = function () {};
 
 Phaser.TweenManager.prototype.constructor = Phaser.TweenManager;